Transmission Power Switch Rotary Shaft Brake Mechanism

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional vehicle transmission systems are complex and inefficient, lacking a direct and simplified mechanism for power transmission and switching between drive mechanisms.

Innovation Solution

A transmission power switch device with a rotary shaft incorporating a freely rotatable first and second drive mechanism and a brake device that can move between positions to selectively brake either mechanism, allowing for simplified power transmission to an output shaft, featuring a brake device with toothed sections for engagement with drive gears and a shift tool for manual or automatic control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional transmission control mechanisms with multiple spring-like bodies and control push sleeves are used, then power transmission control is achieved, but device complexity increases

Engineering Contradiction:
Improvepower transmission controlVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates unnecessary intermediate components (spring-like bodies, control push sleeves, turbine discs) from the conventional transmission control mechanism. The core function of selective power transmission is achieved by directly mounting drive mechanisms on the rotary shaft and using a brake device to selectively brake them, removing extraneous elements while preserving essential functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of using a complex positive engagement mechanism to connect drive mechanisms to the output shaft, the patent inverts the approach by using a brake device to selectively restrain drive mechanisms that are not currently selected. This negative control method simplifies the structure by replacing multiple engagement components with a single braking mechanism.

Inventive Principle:
Principle #13The other way round (Inversion)

2Adaptability or versatility

If multiple spring-like bodies and control push sleeves are mounted inside and outside the input gear set, then transmission ratio switching is achieved, but the transmission device becomes more complex

Engineering Contradiction:
Improvetransmission ratio switchingVSAvoidtransmission control mechanism
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The brake device serves multiple functions: it selectively brakes different drive mechanisms to achieve transmission ratio switching, controls power flow distribution, and enables reverse operation. This single multi-functional component replaces the conventional multiple spring-like bodies and control push sleeves required for similar functionality.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the functions of transmission control, power routing, and ratio switching into a unified system where the brake device controls which drive mechanism transmits power to the output shaft. This consolidation eliminates the need for separate control elements for each function, reducing overall device complexity.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If conventional manual or automatic transmission control electro-apparatus is used to control turbine disc rotation, then selective drive of different balls or push rods is achieved, but the system becomes less efficient and more complex

Engineering Contradiction:
Improveselective drive controlVSAvoidoperational efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent removes the turbine disc, control electro-apparatus, and associated push rods or balls from the system. Selective drive control is achieved more directly by using the brake device to restrain non-selected drive mechanisms, eliminating the intermediate control elements and improving operational efficiency.

Inventive Principle:
Principle #2Taking out (Extraction)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution provides a simplified and direct power transmission and switching mechanism, enhancing operational efficiency and reducing complexity compared to conventional systems, allowing for advanced control over vehicle movement and power distribution.

Implementation Method 1

the brake device being at least movable between a first position and a second position to selectively brake the first drive mechanism or the second drive mechanism to output power

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS9435413B2Transmission power switch device assembled with rotary shaft
Publication Date: 2016.09.06 DIRECT TRANSMISSION TECH CO LTD
  • US9435413B2 patent drawing
  • US9435413B2 patent drawing
  • US9435413B2 patent drawing

AI summary

A transmission power switch device assembled with rotary shaft has a simplified structure and provides power transmission and switching effect. The transmission power switch device includes a rotary shaft connected with a power source. On the rotary shaft are disposed a first drive mechanism, a second drive mechanism and a brake device rotatable with the rotary shaft. The brake device is movable on the rotary shaft to selectively brake the first drive mechanism or the second drive mechanism so as to transmit power to an output shaft.